結果 : is it okay to sleep 4 hours once
1:51

I Can't Sleep for More Than 4 Hours a Night - Why? | This Morning

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Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired

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How much sleep do you really need? | Sleeping with Science, a TED series

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How many hours of sleep a night do I need?

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0:35

Doctor Explains Why You DON’T Need 8 Hours Sleep!

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22:56

What Happens If You ONLY SLEEP 4 Hours A Night for 30 Days?

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How many hours of sleep do you need?

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3:01

How to Sleep Less and Get More Out of Your Day- Thomas DeLauer

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Why Humans Are Supposed to Sleep in Two 4-Hour Phases

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3:54

Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED

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What Happens to Your Body on Little Sleep?

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Can you sleep for just 4 hours a day ??

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How To Survive A Day On No Sleep

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What Happens To Your Body When You Sleep 4-6 Hours vs 7-10 Hours

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Can You Catch Up on Lost Sleep?

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Yoga Guru - Hansaji | How many hours should you sleep?

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"4 HOURS OF SLEEP" - The Fatal Mistake You're Making (Matthew Walker , Tim Grover , Rahul Jandial)

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This is how you can achieve PERFECT 100% sleep score every night.

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The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg

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